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  #  license agreements. See the NOTICE file distributed with
  #  this work for additional information regarding copyright
  #  ownership. Elasticsearch B.V. licenses this file to you under
  #  the Apache License, Version 2.0 (the "License"); you may
  #  not use this file except in compliance with the License.
  #  You may obtain a copy of the License at
  #
  # 	http://www.apache.org/licenses/LICENSE-2.0
  #
  #  Unless required by applicable law or agreed to in writing,
  #  software distributed under the License is distributed on an
  #  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  #  KIND, either express or implied.  See the License for the
  #  specific language governing permissions and limitations
  #  under the License.
  
  from .utils import NamespacedClient, query_params, _make_path
  
  
  class MigrationClient(NamespacedClient):
      @query_params()
      def deprecations(self, index=None, params=None, headers=None):
          """
          Retrieves information about different cluster, node, and index level settings
          that use deprecated features that will be removed or changed in the next major
          version.
          `<https://www.elastic.co/guide/en/elasticsearch/reference/7.9/migration-api-deprecation.html>`_
  
          :arg index: Index pattern
          """
          return self.transport.perform_request(
              "GET",
              _make_path(index, "_migration", "deprecations"),
              params=params,
              headers=headers,
          )
  